<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>数据统计</el-breadcrumb-item>
            <el-breadcrumb-item>数据报表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区域 -->
        <el-card>
            <!-- 为 ECharts 准备一个定义了宽高的 DOM -->
            <div id="main" style="width: 750px;height:400px;"></div>
        </el-card>
    </div>
</template>

<script>
import echarts from 'echarts'
import _ from 'lodash'
export default {
    data() {
        return {
            options: {
                title: {
                    text: '用户来源'
                },
                tooltip: {
                    trigger: 'axis',
                    axisPointer: {
                    type: 'cross',
                    label: {
                        backgroundColor: '#E9EEF3'
                    }
                    }
                },
                grid: {
                    left: '3%',
                    right: '4%',
                    bottom: '3%',
                    containLabel: true
                },
                xAxis: [
                    {
                    boundaryGap: false
                    }
                ],
                yAxis: [
                    {
                    type: 'value'
                    }
                 ]
                }
        }
    },
    created() {
        
    },
    mounted(){
        //dom创建完成之后才会执行
        this.createUserInfoChart()   
        
    },
    methods: {
        async createUserInfoChart(){
            var myChart = echarts.init(document.getElementById('main'));
            const { data: res } = await this.$http.get('reports/type/1')
            if (res.meta.status !== 200) {
                return this.$message.error('获取图片数据失败!')
            }else{              
                const result = _.merge(res.data, this.options)           
                myChart.setOption(result)
                return this.$message.success('获取图片数据成功!')
            }  
        }
    },
}
</script>

<style lang="less" scoped>

</style>